The high performance of a pseudocapacitor electrode relies largely on a scrupulous design of nanoarchitectures and smart hybridization of bespoke active materials. We present a powerful two-step solution-based method for the fabrication of transition metal oxide core/shell nanostructure arrays on various conductive substrates. Demonstrated …
Learn MoreIn this work, we report CoMoO 4 @MoZn 22 core-shell structures grown on Ni foam via a simple hydrothermal route. The as-prepared products can be utilized directly as electrode materials for supercapacitors, demonstrating a capacity of 923 C g −1.The as-assembled hybrid capacitor using CoMoO 4 @MoZn 22 as positive electrode …
Learn MoreThe CuO@CoV LDH core–shell structure exhibited excellent catalytic stability with a slight increment in the potential value from 1.565 to 1.580 V after 10 h. Thus, the CuO@CoV LDH core–shell structure fabricated by the electrodeposition method finds prospective application in electrochemical energy storage and electrocatalytic activity.
Learn Moreselect article Metal-organic framework-derived NiS@Cobalt-Molybdenum layered double hydroxides shell@core as cathode and CoFe<sub>2</sub>O<sub>4</sub>-nanoparticles@MXene shell@core as anode materials for ultra-high energy-density flexible asymmetric supercapacitor
Learn MoreMaterials with a core–shell and yolk–shell structure have attracted considerable attention owing to their attractive properties for application in Na batteries and other electrochemical energy storage systems. Specifically, their large surface area, optimum void space, porosity, cavities, and diffusion lengt Research advancing UN SDG …
Learn MoreThis review presents the systematic design of core–shell and yolk–shell materials and their Na storage capacity. The design of different metal structures with …
Learn MoreEnergy storage performances of Ni-based electrodes rely mainly on the peculiar nanomaterial design. In this work, a novel and low-cost approach to fabricate a promising core-shell battery-like ...
Learn MoreRequest PDF | Using triply periodic minimal surfaces (TPMS)-based metal foams structures as skeleton for metal-foam-PCM composites for thermal energy storage and energy management applications ...
Learn MoreSection snippets Role of lattice mismatch to produce stable core shell MOF structures. The combination of two or more MOFs in an efficient hetero-structural form can provide elegant structures and elaborate functional properties such as tuneable energy gradient, variable pore structure, the reduced energy barrier for ion transfer, increased …
Learn MoreThe structural integrity of a lab-scale shell and tube latent heat thermal energy storage under transient conditions was investigated. The system was designed to use sodium at 750 °C as a heat transfer fluid with a high temperature phase change material, melting at 705.8 °C, as the heat storage medium.
Learn MoreThe effective roles of Janus structures in different energy storage devices. 2. ... The presence of polar groups and a uniform pore distribution in the metal–organic framework (MOF) structure enabled efficient ion transport, reducing dendrite formation on the anode. ... Another intriguing advancement is the Janus shell structure, ...
Learn MoreThe preparation of Cu 2 Se@MnSe heterojunction spherical shells combines the hydrothermal synthesis method and the fusion diffusion method. As shown in Fig. 1, isopropanol and glycerol are used as solvents, Cu(NO 3) 2 ·3H 2 O and Mn(NO 3) 2 ·4H 2 O are added, and the reaction is conducted at 180 °C for 6 h, centrifugation is …
Learn More1. Introduction. In the face of climate change caused by the burning of various fossil fuels for energy generation, it is urgent to improve the efficiency of energy usage and develop renewable and sustainable energy (such as solar, wind, geothermal, tidal, etc.) [1], [2], [3], [4].Particularly, the exorbitant utilization cost and intermittent …
Learn More1. Introduction. Nowadays, thermal energy storage (TES) units are being integrated with renewable energy systems and developed to cover the mismatch between energy demand and supply [1] tegration of TES units with renewables like solar can cover the diurnal energy needs of consumers [2, 3].The principle of TES is to store a part of …
Learn MoreIn this work, a novel core-shell structure consisting of a porous graphite core, a nanosilicon filler layer, and a pitch coating carbon shell has been developed for lithium-ion battery anode material. This structure was prepared by liquid-phase milling and carbonization processes. Compared with other silicon (Si)-based anode materials, this ...
Learn MoreFig. 6.1 shows the variation of f I with the 2t/d can be clearly seen that the f I rapidly increases with the 2t/d at the low value (2t/d<0.5). When the interfacial thickness equals 0.13 of the diameter of particles, the f I will be approximately 50%. It clearly demonstrates that the volume fraction of interfacial region largely depends on the ratio of …
Learn MoreCore-shell structured nanomaterials applied to energy storage2.1. Core-shell structured nanomaterials for supercapacitors ... The process of Li storage in metal oxides consists of the decomposition and ... Construction of a core-shell structure is regarded as an effective method for electrochemical performance improvement because …
Learn MoreThe microstructures and morphologies of Co-ZIF-L and NCo-C-NS were systematically investigated (Fig. 2).The Co-ZIF-L exhibits a shape similar to leaves, with lateral dimensions of around 8 μm (Fig. 2 a, b).The XRD pattern (Fig. 2 c) matches the simulated XRD results, indicating the successful synthesis of Co-ZIF-L.As shown in Figure S2, when the …
Learn MoreThe application of core–shell structured nanomaterials in energy storage exhibits remarkable advantages to achieve enhanced energy storage capabilities compared to …
Learn More1. Introduction. LIBs have been widely used in electric vehicles and electronic devices as advanced energy storage applications [1], [2].However, the low specific capacity of commercial graphite anodes has made it difficult to meet the growing demand for the resource [3], [4], [5].Therefore, the development of high-capacity anode …
Learn MoreIn this paper, using Ni 3 S 2 @MoS 2 as an example, we report the successful design and synthesis of a novel hybrid core/shell metal sulfides with a conductive Ni 3 S 2 core by a green, scalable and one-step solution strategy. When they are tested as supercapacitor electrodes, the Ni 3 S 2 @MoS 2 heterostructure exhibits about …
Learn MoreHollow multishelled structure (HoMS) is a promising multi-functional platform for energy storage, owing to its unique temporal-spatial ordering property and buffering function. Accurate co-control of its multiscale structures may bring fascinating properties and new opportunities, which is highly de …
Learn MoreSection snippets The synthesis of mesosphere-petal-like shell (MPLS) structure of MoS 2. According to Ref. [19], 0.5 g Na 2 MoO 4 ·2H 2 O and 1.0 g CS(NH 2) 2 were dissolved in 30 mL DI water and stirred for 30 min. Then the mixed solution were transferred to Teflon reactor and kept 200 °C for 24 h, which was cooled to room …
Learn MoreDesign and operating evaluation of a finned shell-and-tube thermal energy storage unit filled with metal foam. ... natural graphite sheet is an innovative material for fins owing to its high thermal physical properties, ultra-lightweight, and non-corrosivity. ... Performance evaluation on the gradient design of pore parameters for …
Learn More1. Introduction. Constructing energy storage devices such as asymmetric supercapacitors (ASC) with high energy and power densities, high-rate charge/discharge capability, long lifetime and excellent reliability is necessary to solve the exhaustion of fossil fuels and serious energy shortage issues [[1], [2], [3], [4]].Nickel cobalt sulfide (Ni-Co-S) …
Learn MoreAn overview of MoS 2 as an efficient material for energy storage and conversion. • Detailed discussion on various strategies to upgrade the electrochemical performance of MoS 2. • Role of core-shell structured materials in energy storage and conversion. • Detailed discussion on MoS 2-based core-shell composites for energy …
Learn MoreRecent progress in developing polymer nanocomposite membranes with ingenious structures for energy storage capacitors. Author links open overlay ... The number of publications with "dielectric" & "energy storage" & "core-shell" and "dielectric" & "energy storage" & "multilayer" as keywords increased by 1634% and 800% ...
Learn MorePolymer-based capacitors are essential components in modern electronics and power systems. The long-standing challenge that is the contradiction between the breakdown strength and permittivity of dielectric materials has severely impeded their development for high-power capacitors. Polymer blends have recent Journal of Materials …
Learn MoreNovel core-shell structure hard carbon/Si-carbon composites are prepared, and their electrochemical performances as an anode material for lithium-ion batteries are reported. Three different types of shell coating are applied using Si-carbon, Si-carbon black-carbon and Si-carbon black-carbon/graphite nanosheets. It appears that the use of n …
Learn MoreCost-effective synthesis of core-shell carbon spheres for supercapacitor applications remains a challenge. N/O codoped hierarchical porous carbon spheres with the core-shell architecture (MPG 2) are fabricated based on the dynamic Schiff-base chemistry free from any templates or complicated procedures.The nanoarchitectures of …
Learn MoreNanoporous metals and nanoporous metal oxide-based materials are representative type of porous and nanosized structure materials. They have many excellent performances (e.g., unique pore structure, large clear surface area and high electrical conductivity) to be prodigiously promising potentials, for a variety of significant …
Learn MoreA small-scale experimental LHTES system (Fig. 1) was designed to investigate the hydrothermal and mechanical performance of a high temperature shell and tube system with a PCM melting at 705.8 °C confined in the shell and sodium as the HTF passing through the tubes [50].The characteristics of high temperature crystalline salts …
Learn MoreIn this paper, silicon carbon composites with core–shell structure were prepared by aluminothermic reduction and solvent evaporation with natural sepiolite as …
Learn MoreLatent heat thermal energy storage employing phase change materials is widely used in energy storage systems.To further improve the low thermal conductivity of phase change materials in these systems, it is essential to investigate different thermal enhancement techniques. In this work, two principal thermal enhancement techniques …
Learn MoreOwing to their special physical and chemical properties, nanomaterials with core–shell structures have been extensively synthesized and widely studied in the field …
Learn MoreSilicon-based anode electrode materials prepared by reducing natural silicate minerals can not only improve the electrochemical properties of silicon materials using the special structure of natural minerals, but also have the advantages of environmental friendliness and low-cost, which has attracted more and more attention. In …
Learn MoreRecent advances in micro-/nano-structured hollow spheres for energy applications: From simple to complex systems. Hollow micro-/nano-structured materials …
Learn MoreThe core components are wrapped by shell materials through chemical bonds or intermolecular interactions. The core–shell structure possesses the …
Learn MoreAs the most successful commercial electrochemical energy storage devices, lithium-ion batteries have been widely applied in various electronic devices [1–4] pared with lithium-based energy storage chemistry, sodium is abundant and cheap which are highly emphasized in grid-level energy storage [5–8].Therefore, high …
Learn MoreThe choice of active material for energy storage/conversion devices holds a pivotal role in determining their overall performance. Transition metal dichalcogenides (TMDs) for instance MoS 2, MoSe 2, VS 2, WS 2, WSe 2, and WTe 2 have been widely explored for these devices [22], [23], [24].Among these TMDs, MoS 2 has emerged as …
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